Seiko Cal. 3815 - 581

The 3815-581 is a sought-after Spring Drive piece from Seiko's golden era. It features a White dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-b6a4c66b7de4]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1968

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